old captain slow Posted March 18, 2006 Posted March 18, 2006 Help! We've loaded the 1.6KSS map and the engine tries to go but it's only firing on cylinders 1&2. Are we doing something stupid? C7 CDW Edited by - David W on 18 Mar 2006 18:57:18
Racingshoe Posted March 18, 2006 Posted March 18, 2006 If it's anything like mine, you'll have an early wiring loom. You'll need to splice some wires to get the injectors firining in pairs (1&4, 3&2 together). Rik Robarts - bl**dy bright orange 1900k here
Winky Posted March 18, 2006 Posted March 18, 2006 Cheers Rik i'll give that a go. Is it quite obvious to do? Not that familiar with the wiring Will 60% of the time, it works every time!
Tony C Posted March 18, 2006 Posted March 18, 2006 I couldn't get my engine started when I first fitted an Emerald. It turns-out you have to tell it how many coils you have - dunno if that's your problem. BRG Brooklands SV 😬 It seems that perfection is achieved not when there is nothing more to add, but when there is nothing more to take away. (Antoine de Saint-Exupery)
Andy Best Posted March 18, 2006 Posted March 18, 2006 I had the same problem when I fitted an Emerald a couple of months ago. My car is a 1997 1.6ss so it's EU2 so this should work if yours is the same. Check under the setup menu > ECU Configuration. You should have: Input Main trigger: Crank Type: Inductive Pattern: 36-4 (Rover 2) Output Ignition Driver Output: Single Injection Output: Grouped One of the settings needed changing but I can't remember which one ❗ Andy
old captain slow Posted March 18, 2006 Author Posted March 18, 2006 Right. We grouped the injectors per the Emerald wiring diagram. 1&4 to pin 24 and 2&3 to pin 23. No joy. So we changed the sttings from Grouped per Andy's post to sequencial and lo! she burst into life on all 4 cylinders but only the once and only at idle. As soon as we moved the throttle she died. Anyway tomorrow is another day C7 CDW
old captain slow Posted March 18, 2006 Author Posted March 18, 2006 Having given this some further thought. We initially setup the throttle pot and stepper motor then realised we needed to upload the 1600SS map. Could it be we needed to get the ECU to re-learn the throttle pot characteristics and reset the stepper motor IACV again. After we re-wired the injectors so that 1&4 and 2&3 were grouped, and set the ECU for sequential, the engine burst into life on fast tickover, but as soon as I moved the throttle it died. Could it be that we need to re-tell the ECU about the throttle pot? In other words the later upload of the map overode the first lot of settings? C7 CDW
Racingshoe Posted March 18, 2006 Posted March 18, 2006 Yes, re-calibrate the throttle pot and then save all the settings. You'll then have a map that works. When you load a map, it immediately overwrites every single setting - including the throttle pot. Rik Robarts - bl**dy bright orange 1900k here
old captain slow Posted March 18, 2006 Author Posted March 18, 2006 Thanks. First job tomorrow. C7 CDW
oilyhands Posted March 19, 2006 Posted March 19, 2006 Racingshoe, The throttle pot calibration is part of the ECU setup, not the map, a new map does not alter the pot alignment. It may alter the setting at which idle control comes in though, that is part of the map. Oily
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